add server dir

server/renderer.js

@@ -0,0 +1,52 @@
+const fs = require('fs');
+const spawn = require('child_process').spawn;
+const uuid = require('uuid');
+
+const {getDirPath, getDocPath} = require('./utils');
+
+
+function copyToTemp(id, texDocument, callback) {
+    const dirPath = getDirPath(id);
+
+    fs.mkdir(dirPath, (err) => {
+        if (err) {
+            callback(err);
+            return;
+        }
+
+        const docPath = getDocPath(id);
+        fs.writeFile(docPath, texDocument, (err) => {
+            if (err) {
+                callback(err);
+            }
+            callback(null);
+        });
+    });
+}
+
+function generateDoc(id, callback) {
+    const pdflatex = spawn('pdflatex', [getDocPath(id), '-interaction', 'nonstopmode'], {cwd: getDirPath(id)});
+    pdflatex.stderr.on('data', (data) => {
+        console.error('onData', data);
+    });
+
+    pdflatex.on('close', (code) => {
+        if (code > 0) {
+            callback(`pdflatex returned with code ${code}`);
+            return;
+        }
+        console.log(`PDF ${id} generated`);
+        callback(null, id);
+    });
+}
+
+module.exports = (texDocument, callback) => {
+    const id = uuid.v1();
+    copyToTemp(id, texDocument, (err) => {
+        if (err) {
+            callback(err);
+            return;
+        }
+        generateDoc(id, callback);
+    });
+};